"Weak induction" might be a good way to describe this. "Hasty generalization" if you want a more common logical fallacy to name, though ironically it's a more g

"Weak induction" might be a good way to describe this. "Hasty generalization" if you want a more common logical fallacy to name, though ironically it's a more general fallacy that doesn't perfectly describe the situation you're talking about. Technically all inductive arguments are a non-sequitur, since (non-)sequitur is a deductive concept and inductive arguments are inherently non-deductive.